Blood processing apparatus



FIG. 1 is a front perspective view of a blood processing apparatus showing our new design;

FIG. 2 is a front elevation thereof;

FIG. 3 is a left side elevation thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevation thereof; and

FIG. 6 is a right side elevation thereof. 

The ornamental design for a blood processing apparatus, as shown. 